As of 2004, where is the level use nicotine by students in eighth, tenth, and twelfth grades?

As of 2004, here are the levels of nicotine use by students in eighth, tenth, and twelfth grades:

Eighth Grade:

- Ever used: 18.5%

- Current use (past 30 days): 8.3%

Tenth Grade:

- Ever used: 31.6%

- Current use (past 30 days): 20.1%

Twelfth Grade:

- Ever used: 37.3%

- Current use (past 30 days): 26.8%

These figures were obtained from the National Youth Tobacco Survey conducted by the Centers for Disease Control and Prevention (CDC). The survey tracks tobacco use among middle and high school students in the United States.

Please note that these figures may have changed since 2004 due to evolving trends and ongoing efforts to reduce tobacco use among young people. For the most up-to-date information, I recommend checking the CDC's website or other reputable sources that provide current data on tobacco use among adolescents and young adults.